Build a multi-week estimation contest website in WordPress with rankings at the end
Users should be able to register in WordPress and fill out some Questions to gain points. Each week a new set of Questions is released and each user is only allowed to vote once for the week. After a few weeks the score of all participants will be released.
How would you go about doing that in WordPress? Or is there a software for something like that?
There will be around 1000 participants.